Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
ROCHET, JOHN
1991
Jasen Goldfirth
Cakulis poastria
BLM land along Cat Creek 1 mile E of Chuck Rock, adjacent to quarry section of Dinosaur National
Monument, Uinta Co., Utah. Elevation 5060 ft.
June 16 species known to have pelage on the nest. If the many Green Goldfirth
(cont)
Nests I have found, mostly as grain, New Mexico, none was noted to have
other than one male & one female; though recently, at least some past years,
have been "clumped" in distribution within Blackrock Bosque.
The nest itself had an outside diameter of 10.5 x 9.0 cm; the nest cavity
measurewd 4.5x 4.2 cm. The cavity was recessed about 2.8 or below the rim.
There were three layers of concentric circles of plant materials. The outerest
was outermost and made of plant stems about 1/2-2 mm diameter, was darkly
gray. The middle was made of coarse grass. The innerbird woven layer
was a mix of fine grass stems & a bit of honeckerkin. Padding top over cotton
but not really woven in were tufts of plant down and one tuft of wool. The
nest margin incorporated 4 glanceswood branches peripherally and was
supported by the branching of about 5 mm diameter twigs.
Canyon Creek City, Fremont County, Colorado. Elevation 5332 feet.
June 18 This is the tentative type locality for the species, and of the montana
race, usually considered to be a black-backed male race. Of five birds
I found live today, one was not well seen, one was a female, and three were
adult males, one of which was black-backed; One bird was partly
black-backed (~40%), the other 2 appeared entirely green-backed.
South Fork Kern River Wildlife Area, 3 miles W of Wolson, Kern Co. California.
Elevation 2500 ft.
July 10 I have been to several places hosting summering Lesser Green Goldfirths during my field work, and a cozy place came to mind (near
Jacumba, San Diego Co.) in the Carino River Valley, Monterey Co.) when I have